Insects in Great Britain . 
643 
Petiolata parasitica: Proctotrypidae\ (4) Proctotrype sp., sb. 20. IX. 95, 3,700 ft. 
Diptera. Empidae\ (5) Empis tessellata F., 1. VII. 95, 800 ft. once. Psychodidae : 
(6) Psychoda ?, sh. 22. IX. 95, 3,600 ft. Muscidae : (7) Lucilia cornicina F., 26. VI. 
95, 800 ft. twice. (8) Calliphora vomitoria L., 3. VII. 95, 800 ft. once. (9) Pollenia 
rudis F., 16. VI. 95, 800 ft. once. Anthomyiidae : (10) Hyetodesia incana W., 26. VI. 
95, 800 ft. (n) Limnophora solitaria Ztt., sh. 26. VI. 96, 2,200 ft. (12) Drymia 
hamata Fin., 25. VI.-3. VII. 95; 29. VI. 96, 8-2,600 ft. (13) Trichophthicus sp., 
? sh. 2. VII. 96, 2,800 ft. (14) Anthomyia sp., sh. 15-21. VI. 95; 10. VI.-8. VII. 96, 
800 ft. Cordyluridae : (15) Scatophaga stercoraria L., sh. 21. VI. 95; 24. VI. 96, 
800 ft. Ephydridae : (16) Hydrellia griseola Fin., 3. VII. 95, 1,600 ft. Chloropidae : 
(17) Chlorops ?, 10. VII. 96, 2,200 ft. (18) Oscinis sp., 21. VII. 95, 800 ft. Coleo- 
ptera. (19) Corymbites cupreus F., sh. 19. VI. 96, 900 ft. 
251 . Galium Aparine, Linn. [Lit. Brit. 23 ; N.C.E. 18, 33, 34.] 
Visitors . Hymenoptera. Petiolata parasitica : Chalcididae : (1) 1 sp., sh. 1-6. 
VII 95. Diptera. Anthomyiidae'. (2) Coenosia sp., i.VII. 95. Both at 800 ft. 
252 . Galium palustre, Linn. [Lit. Brit. 23 ; N.C.E. 8 , 14, 18, 25, 34.] 
Visitors. Diptera. Empidae'. (1) Empis tessellata F., sh. 1. VII. 95. (2) E. 
stercorea L., sh. 1. VII. 95. Muscidae'. (3) Lucilia cornicina F., sh. 1. VII. 95. 
Anthomyiidae'. (4) Hyetodesia incana W., 2-6. VII. 95. (5) H. variabilis Fin., i.VII. 
95. All at 800 ft. 
Class A, § 6 9. Arenaria sedoides Type. 
253. Arenaria sedcides, Schultz. [Lit. Alps 2 , 21 b.] The flower 
opens very widely, so as to expose the abundant honey freely. The stamens 
bend very far out after dehiscing ; but, as here and there an anther does 
not fall off, self-pollination may be brought about in the closing of the 
flower. Its duration is three to four days. The yellow nectaries are the 
most conspicuous part of the flower. Seed is freely produced. 
Visitors. Hymenoptera. Petiolata parasitica : (1) 1 sp., sh. 27. VI. 96. 
Diptera. Myceiophilidae : (2) Sciara sp., sh. 19. VI. 99, and ? 2. VII. 96. Bibionidae : 
(3) Bibio nigriventris, Hal., sh. covered with pollen, 16. VI. 99. Anthomyiidae : (4) 
Anthomyia sp., 16. VI. 99. Cordyluridae'. (5) Scatophaga stercoraria L., sh. 16. VI. 
99. Sapromyzidae : (6) Sapromyza sp., 16. VI. 99. Coleoptera. (7) 1 sp. similar 
to Amara bifrons Gyll., sh. 16. VI. 99. Collembola. (8) 1 sp., sh. 2. VII. 96. 
Acarina. (9) 1 sp., sh. 2. VII. 96. All at 2,850 ft. 
Class A attracted three species of the butterflies, three of the larger 
moths, and six of the smaller moths, including Eriocephala; of Hymenoptera, 
Apis, two species of Bombus, one of Andrena, one of Vespa, two species of 
ant, five of Tenthredinidae, one of Chrysis, and about thirty of parasitic 
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